Files
elm-0.19-workshop/intro/part3/src/Main.elm
2018-08-14 03:48:43 -04:00

111 lines
2.1 KiB
Elm

module Main exposing (main)
-- FYI: 👇 You can see our new `Article` module in `src/Article.elm`
import Article
import Browser
import Html exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (onClick)
-- MODEL
initialModel =
{ tags = Article.tags
, selectedTag = "elm"
, allArticles = Article.feed
}
-- UPDATE
update msg model =
if msg.description == "ClickedTag" then
{ model | selectedTag = msg.data }
else
model
-- VIEW
view model =
let
articles =
List.filter (\article -> List.member model.selectedTag article.tags)
model.allArticles
feed =
List.map viewArticle articles
in
div [ class "home-page" ]
[ viewBanner
, div [ class "container page" ]
[ div [ class "row" ]
[ div [ class "col-md-9" ] feed
, div [ class "col-md-3" ]
[ div [ class "sidebar" ]
[ p [] [ text "Popular Tags" ]
, viewTags model
]
]
]
]
]
viewArticle article =
div [ class "article-preview" ]
[ h1 [] [ text article.title ]
, p [] [ text article.description ]
, span [] [ text "Read more..." ]
]
viewBanner =
div [ class "banner" ]
[ div [ class "container" ]
[ h1 [ class "logo-font" ] [ text "conduit" ]
, p [] [ text "A place to share your knowledge." ]
]
]
viewTag selectedTagName tagName =
let
otherClass =
if tagName == selectedTagName then
"tag-selected"
else
"tag-default"
in
button
[ class ("tag-pill " ++ otherClass)
, onClick { description = "ClickedTag", data = tagName }
]
[ text tagName ]
viewTags model =
div [ class "tag-list" ] (List.map (viewTag model.selectedTag) model.tags)
-- MAIN
main =
Browser.sandbox
{ init = initialModel
, view = view
, update = update
}